Question

The diameter of two right circular cones are equal in if their slant height are in the ratio of 3:2, then what is the ratio of their curved surface area?

Answer 1

Csa cone1 : csa cone2

Slant height of cone 1 = 3x
Slant height of cone2 = 2x

22/7*r*l : 22/7*r*l
22/7 will be canceled
If dia is equal then radius is equal so the will be canceled

Now,
l : l
3x : 2x

X will be cancelled

3 : 2

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